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1.
Article in Chinese | WPRIM | ID: wpr-687247

ABSTRACT

To compare the intestinal absorption of Wuzhuyu decoction(WZYD) between normal rats and migraine model rats, and investigate the optimized WZYD from aspect of absorption. The rat single pass intestinal perfusion test(SPIP) was adopted for optimized sample and un-optimized sample in normal and migraine model rats induced by nitroglycerin and reserpine. The contents of 8 ingredients were determined by high performance liquid chromatography(HPLC), and 4 absorption parameters for each ingredient were calculated and compared: unit area absorption(Mper area), absorption rate constant(Ka), apparent coefficient(Papp) and relative absorption rate(RA). The results showed that there was a great difference between normal rats and model rats in the intestinal absorption of the same WZYD. As compared with normal rats, the absorption parameters of most ingredients in optimized sample were increased in migraine model rats induced by nitroglycerin; Similar phenomena were also found in migraine model rats induced by reserpine. However, the absorption parameters of most ingredients were decreased in un-optimized sample. Therefore, pathological model rats shall be used for effective ingredient recognition based on the correlation between intestinal absorption spectra and pharmacological effects. As compared with the un-optimized samples, the absorption of effective ingredients was faster, easier and more adequate in the optimized samples, revealing their mechanism on better efficacy from the aspect of absorption.

2.
Article in Chinese | WPRIM | ID: wpr-335784

ABSTRACT

To explore the correlation between color of Glycyrrhiza uralensis and its quality evaluation,the colors of root bark and transverse section were determined by Precision Color Reader and Visual Analyzer,and the contents of six flavonoids and two saponins in G.uralensis were determined by high performance liquid chromatography(HPLC).The partial least squares regression(PLSR)method was employed to correlate the colors with component contents in G.uralensis. The results showed that there were no significant differences in the colors of root bark but significant or very significant differences(P<0.05,P<0.01)in the colors of transverse section between the wild and cultivated G. uralensis. Compared with those in the cultivated G. uralensis, the contents of liquiritin, isoliquiritin isoliquiritigenin and the contents of ammonium glycyrrhizinate, glycyrrhetinic acid were obviously significant or remarkably significant in the wild G. uralensis.The correlation results showed that there was a significant or very significant correlation between the colors and the effective component contents. This study provides a scientific basis to evaluate the quality of G.uralensis by color and a new reference for the traditional evaluation methods for Chinese drugs.

3.
Article in Chinese | WPRIM | ID: wpr-279249

ABSTRACT

To study the compatible mechanisms and compatible proportion of Shaoyao Gancao decoction, the intestinal absorption of main ingredients in Shaoyao Gancao decoction SG11 (Baishao-Zhigancao 1: 1) , SG31 (Baishao-Zhigancao 3: 1), Baishao water decoction S and Zhigancao (G) were investigated and compared using in vitro everted intestinal sac model and in situ single pass intestinal perfusion (SPIP) model. The concentration of paeoniflorin (PF), liquiritin (LQ) and mono-ammonium glycyrrhizinate (GL) in test samples and samples of intestinal sac and intestinal perfusion was determined by HPLC. The intestinal absorptive amount and absorption parameters were calculated. Results showed that in the everted intestinal sac model, three ingredients could be absorbed by duodenum, jejunum and ileum, and the absorption in the jejunum was best for all 3 ingredients. The absorption rate of three ingredients in SG11 was significantly higher than that in single decoction (P < 0.05), but had no significant difference compared with SG31. In SPIP model, the absorption rate constant K(a), the apparent absorption coefficient P(app) and the absorption rate of three ingredients in SG11 were significantly higher than those in single decoction. Parameters of PF and GL in SG11 were significantly higher than those in SG31, but had no differences of LQ. It proved that the compatibility of Baishao and Zhigancao could improve the intestinal absorption of PF, LQ and GL. The absorption of each ingredient in SG11 was better than that in SG31.


Subject(s)
Animals , Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Pharmacokinetics , Intestinal Absorption , Intestines , Metabolism , Male , Rats , Rats, Sprague-Dawley
4.
Article in Chinese | WPRIM | ID: wpr-319642

ABSTRACT

Wuzhuyu Tang is a classical formula for treating migraine, but its' pharmacological ingredients is unclear yet. Present study employed the everted intestinal sac model to collect the absorption samples of 10 kinds of Wuzhuyu decoction, and then analyzed the contents of 9 ingredients in Wuzhuyu Tang and absorption samples quantitatively or semi-quantitatively by HPLC-DAD method. Reserpine was used to establish the mice model of migraine, and then the contents and activities of 5-hydroxytryptamine, noradrenaline, dopamine, nitric oxide and nitricoxide synthase in brain tissues and serums were determined respectively after oral administration of Wuzhuyu Tang. Using the partial least squares regression method to correlate the total absorption quantity of 9 ingredients and pharmacodynamics. The result shows that limocitrin-3-O-beta-D-glucoside, ginsenoside Rg1 and Rb1, rutaevine, limonin, evodiamine and rutaecarpine are the main ingredients influenced the effects in absorption samples in everted intestinal sacs, especially ginsenoside Rg1, rutaevine, evodiamine and rutaecarpine among them have obvious improving effects to most pharmacodynamics index, might be the pharmacological ingredients influenced the therapeutical effects of Wuzhuyu Tang treating migraine.


Subject(s)
Animals , Drugs, Chinese Herbal , Pharmacology , Female , Intestinal Absorption , Intestines , Male , Mice , Mice, Inbred ICR , Migraine Disorders , Drug Therapy , Rats , Rats, Wistar
5.
Article in Chinese | WPRIM | ID: wpr-854851

ABSTRACT

Objective: To explore the influence of the contents of nine ingredients in Wuzhuyu decoction on its own uptake amount into the everted intestinal sac, in order to blend Wuzhuyu decoction samples to improve the index of migraine model rats. Methods: The everted intestinal sac model was established to determine the absorption samples of 10 kinds of Wuzhuyu decoction. HPLC-DAD method was used to analyze the contents of nine ingredients in Wuzhuyu decoction and absorption samples quantitatively and semi-quantitatively. The partial least squares regression method was used to correlate the contents in the decoction and the total absorption quantity of nine ingredients. Results: In the experimental concentration range, the higher the concentration of limocitrin-3-O-β-D-glucoside, ginsenoside Rg1, 6-gingerol, and ruteavin in the decoction were, the more they were absorbed into the intestine sac, while ginsenosides Re, Rb1, limonin, evodiamine, and rutaecarpine were contrary. The interaction of different ingredients on each other's absorption was complicated. Conclusion: The above relationship should be considered to obtain the satisfactory samples of Wuzhuyu decoction.

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